Known vulnerabilities in Windows Server - page 6

Vendor: Microsoft
Software: Windows Server
Software CPE: cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:*
Website: https://www.microsoft.com
Total vulnerabilities: 6300
Public exploits: 488
Known exploited (KEV): 268
Highest CVSSv4 Score: 9.4

Breakdown by Severity Chart

Severity distribution of vulnerabilities affecting Windows Server Windows Server is affected by 6300 known vulnerabilities: 95 critical, 1270 high, 1244 medium, 3689 low Critical High Medium Low

Vulnerabilities (6300)

Vulnerability CWE-ID CSH Severity Public Exploit KEV First fixed release Published Bulletins
#VU138050 - Heap-based Buffer Overflow
CVE-2026-50461		 CWE-122 High
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138049 - Use After Free
CVE-2026-50432		 CWE-416 Low
No
No
 2012 R2 6.3.9600.23291, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138048 - Incorrect Conversion between Numeric Types
CVE-2026-50402		 CWE-681 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138047 - Use of Uninitialized Resource
CVE-2026-50455		 CWE-908 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138046 - Missing Authentication for Critical Function
CVE-2026-50451		 CWE-306 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138045 - Out-of-bounds read
CVE-2026-50383		 CWE-125 Low
No
No
 2012 R2 6.3.9600.23291, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138044 - Improper Validation of Array Index
CVE-2026-50367		 CWE-129 Low
No
No
 2012 R2 6.3.9600.23291, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138043 - Use After Free
CVE-2026-50374		 CWE-416 Low
No
No
 2012 R2 6.3.9600.23291, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138042 - Type confusion
CVE-2026-50421		 CWE-843 Low
No
No
 2012 R2 6.3.9600.23291, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138041 - Out-of-bounds read
CVE-2026-50422		 CWE-125 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138040 - Use After Free
CVE-2026-50427		 CWE-416 Low
No
No
 2012 R2 6.3.9600.23291, 2019 10.0.17763.9020, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138039 - Relative Path Traversal
CVE-2026-50426		 CWE-23 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138038 - Improper Authentication
CVE-2026-50365		 CWE-287 Medium
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138037 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2026-50454		 CWE-22 Low
No
No
 2012 R2 6.3.9600.23291, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138036 - Improper Link Resolution Before File Access ('Link Following')
CVE-2026-50469		 CWE-59 Low
No
No
 2012 R2 6.3.9600.23291, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138035 - Use After Free
CVE-2026-50369		 CWE-416 Medium
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138034 - Heap-based Buffer Overflow
CVE-2026-50471		 CWE-122 High
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138033 - Out-of-bounds read
CVE-2026-50437		 CWE-125 Low
No
No
 2012 R2 6.3.9600.23291, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138032 - Improper Authorization
CVE-2026-50344		 CWE-285 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705
#VU138031 - Improper Access Control
CVE-2026-50334		 CWE-284 Low
No
No
 2012 R2 6.3.9600.23291, 2012 6.2.9200.26226, 2016 10.0.14393.9339, 2019 10.0.17763.9020, 2022 10.0.20348.5386, 2025 10.0.26100.33158 17.07.2026 SB2026071705


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